Sheaf-loader.



N. JACKSON.

SHEAF LOADEB. APPLICATION FILED mm 1914.

Patented July 16, 1918.

4 SHEETSSHEET 1.

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I N. JACKSON.

SHEAF LOADER.

APPLICATION man APR. 8. 191 4.

Patented July 16, 1918.

4 SHEETS-SHEET 2- m: NORRIS warns cm. FNDTO-LIYHZL. WASHING mm a. c.

N JACKSON. SHEAF LOADER. APPLICATION FILED APR. 8, 1914.

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NELSON JACKSON, or NEEPAWA, MANITOBA, CANADA.

SHE'AF-LOADER.

Specification of Letters Patent. Patented my '16, 1918.

Application filed April 8, 1914. Serial No. 830,512.

To all whom it may concern:

Be it known that I, NELSON JACKSON, of the town of Neepawa, in the Province of Manitoba, Canada, have invented certain new and useful Improvements in sheaf- Loa ders, of which the following is the specification. v i

The invention relates to improvements in sheaf loaders and the general object of the invention is to provide a machine of this class whereby one can drive over a field and pick up a load of sheaves, which load when collected can be automatically dumped from the machine wherever required. Particular features of the invention reside in the construction of the plckup portion of the machine which is simple in construction, easily operated and positive inits action,also in the formation 'of the rack which is provided with a swinging bottom and a. pivoted gate, the bottom being controlled in dumping by the driver and the gate being automatically controlled so that it is unlatched automatically in the dumping of the load and co-incident with the swinging of the rack bottom. A further feature resides in the special form of hitch provided for the draft animals.

The invention consists essentially in the arrangement and construction of parts hereinafter more particularly described and later pointed out in the appended claims, reference being had to the accompanying drawings in. which:

Figure 1 represents a side view of the machine.

Fig. 2 represents a plan view of the same.

Fig. 3 represents a longitudinal.sectional view centrally through the machine.

Fig. 4 represents an enlarged detailed vertical sectional view through the pickup, part being shown in dotted outline to' expose construction.

Fig. 5. is an enlarged detailed front view of the parts appearing in Fig. 4.

Fig. 6 is. an enlarged detailed plan view of the form of clutch provided. a

Fig. 7 is an enlarged detailed longitudinal sectional view through the parts appear-ing in Fig. 6.

Fig. 8 is an enlarged detailed planview of the gate locking mechanism.

Fig. 9 is an enlarged detailed inverted plan view of one of the spring catches.

Fig. 10 is a plan view of the forward ends of the draft poles showing the yoke bar connectedthereto.

Fig. 11 is a side view of the parts appearing in Fig. 10.

In the drawings like. characters of reference indicate corresponding parts in each figure.

The machine is, formed with a main frame 1 comprising side members 2 and. 3 connected forwardly by a cross bar 5 and rearwardl by a cross aXle G, the axle being rotatably mounted in bearing blocks 7 per-' I manently secured to the side members and. belng fitted with fixed. traction wheels 8 and 9.

In the actual construction theside mem-- bers and the front cross bar have their ad joining ends, permanently fastened to vertically disposed sleeves-1O which sleeves form bearings for the pivoted spindles 11 of-the front caster wheels 12 and 13 which support the forward end of the frame.

It will be noticed that the spindles are supplied with permanent collars 14 on which the sleeves "rest. 7

receptacle mounted on, the rear end of. the.

frame and constructed as now describedfin detail z- It is formed with permanently closed sides 16 and 17 and a permanently closed front end 18, these being constructed from suitable side pieces carrying. closure face boards as shown.

The rear end of the receptacle is normally closed. by a gate 19 having theupper edge thereof suspended by hinges 20 from a cross piece 21 passing between the sides of the rack.

The sides of the rack bear on the bearing blocks 7 to which they are secured while the forward ends thereof are tied to the frame members by brackets 22. In this way the body ofthe rack has a fixed position at all. times in respect to the frame.

The bottom of the rack is formed from a swinging pan 23 which is carried at opposite sides by pairs of hangers 24 and 25, the hangers having their lower ends connected to'the panv sides and their upper ends fastened to side bars 26 mounted more or less centrally of their length on horizontally disposed pivot bolts 27 carried by the rack sides.

The arrangement of the hangers, side bars and bolts is such that the pan can be dumped or tilted till its rear end engages with the ground while the body thereof remains clear of the axle 6. v

28 is an inclined apron located in the front end of the rack and having the upper end thereof pivotally fastened at 29 to the front end of the rack and the lower end resting freely on the upper face of the pan.

30 are inclined slats located in the forward end of the rack immediately at the pick-up 33 located' immediately at the lower 7 end of the conveyer.

In actual practice the pick-up catches and raises the sheaves from the ground, delivering them onto the conveyer which elevates them and deposits them in the rack. The conveyer and pick-up are now described in detail,-

The conveyer frame is formed from parallel pairs of inclined angle irons 34 and 35 fastened one to the other by side bars- 36, the upper angle irons 34 being spaced apart at opposite sides of the machine by an intervenlng carrier plate 37 permanently fastened to the inturned flange of each angle iron.

The lower end of the conveyer frame rests on and is permanently secured to the cross bar 5 while the upper end overhangs the rack and is fastened to the sides thereof by brace bars 38.

The lower ends of each pair of angle irons carrya head plate 39 permanently fastened to the angle irons and in which I have rotatably mounted the lower conveyer cross shaft-40.

41 is the upper conveyer cross shaft rotatably mounted in side plates '42 secured to the angle bars. 7

43 and 44 are cam disks mounted on the lower conveyer shaft and permanently se-' cured to the inner faces of the head plates. 45 and 46 are chain wheels permanently secured to the lower cross shaft and spaced somewhat back from the faces of the cam The lower pair of chain wheels'c'arry three rotatably mounted counter shafts 52 disposed at 180 and having their ends protruding through thechain wheels and fitted with cranks 52 carrying rollers 5 2. The

rollers are all received within cams or guide ways 53 formed on the inner facesof the disks. The particular construction of these cams is best shown in Fig. 40f the drawings where it will be seen that they are arranged for the greater part concentric to the shaft 40 but have portions thereof drawn in to-' ward the shaft as indicated at 53, the action of which is to cause 'thecarrier shafts to be rotated a set amount during the interval that the rollers are passed through the depressed portions of the cams.

The counter shafts are fitted with suitably spaced outstanding prongs 54, the positions of which are controlled by the cams through the counter shafts as will be readily understood.

Guard plates 52 are passed around the counter shafts between the prongs.

I wish here to point out that the cams'are set in a fixed position such that in the rotation of the shaft 40 the prongs will be held fast in an outstanding position on the forward side of the pick-up and will be rotated at the rear side so as to properly free the sheaf to the conveyer and at the same 7 time clear the lower end of the carrier plate.

holding the prongs In an outstanding position on the forward side of the pick-up the sheaves lying on the ground are efi'ec tively caught and retained by the prongs until delivered tothe conveyer.

The frame of the conveyer carries suitable side shields 55 on which I have mounted the attendants seat 56. r I The drive "for the conveyer and consequently the pick-up is now described 57 is a short shaft having the inner end mounted in a suitable bearing presented by the conveyer frame and the outer end rotatably received in a bearing block 58. mounted on an inclined carrier bar 59 fastened to the side of the rack. 7 h I 60 is a chain wheel rotatably mounted on the short shaft and connected by a chain 61'with a main drive chain-wheel 62 permanently secured tothe traction wheel 8.

The chain wheel 60 is fitted with a female clutch member 63 which is designed to engage when shifted with a male clutch member 64 keyed on the outer end of said shaft. A gear wheel 65 is securely. mounted on the inner end of the shaft 57 for a purpose later described.

The female clutch member 63 is supplied with a circumferentially directed channel 67 which receives freely a pair of diametrically opposing pins 68 carried by the forked end of a bell crank 69 pivotally secured to a bracket 70 located on the side of the shield. A link 72 connects the bell crank with a controlling lever 73 located immediately at one end of the drivers seat.

By this construction it will be seen that the driver can engagethe clutch members at will by operating the lever. Any suitable means can be employed for locking the lever in any position such as a quadrant and detent, the detent being controlled by a hand latch as is customary.

74 is a rotatably mounted cross'shaft carried by the conveyer frame and supplied at opposite ends with a pair of chain wheels 7 5 and 76 and with a gear wheel 77 which meshes with the gear wheel 65 already referred to. 1

The outer ends of the upper conveyer shaft 41 are supplied with chain wheels 78 and 7 8 connected by suitable chains 7 9 with the chain wheels 7 5 and 76. In this way the top conveyer shaft and consequently the conveyer and pick-up are driven by the large chain wheel 62.

80 is a cross rod rotatably mounted in the conveyer frame and supplied at one end with a crank 81 and at the opposite end with a lever 82 located within convenient range of the drivers seat.

' The lower end of the crank and the lower end of the lever carry actuating rods 83 having their rear ends pivotally connected at 84: to the under side of the pan. This lever is supplied with a hand latch and detent operating over a quadrant secured to the frame of the conveyer.

The latter parts are arranged so that when the lever 82 is in the forward position and looked as shown, the pan is held in its However upon normal or closed position. releasing the lever and pulling backwardly, the pan will be dumped and the load deposited on the ground.

It will here be understood that the weight of the sheaves in the pan is actually carried by thehangers, the lever and rods being only to prevent it from prematurely dumping.

- 85 is a foot rest for the convenience of the driver.

86 are'extensions to the sides and back of the rack, these allowing a larger load to be from being thrown over the the conveyer.

87 is a locking bar permanently secured to the gate and having the ends thereof projected beyond the sides of the gate and received normally behind spring catches 88 having their forward ends secured permanently to the sides of the rack. The catches hold the, gate normally closed. In order that the gate may be automatically unlocked when the pan is being dumped I have supplied at each side an attachment as now described 89 represents a short lever pivotally secured at 89 to the side of the'raok and having the upper end thereof passing normally beneath the rear end of the catch. The catch is provided on. the under side with a guide piece 88 whichpassesangularly acrossfrom side to side of the catch and is engaged by the upper end of the lever.

the catch to spring1 downward, this howevernot ocurring unt the gate has been released and swung open by the weight of the sheaves.

In order to draw the short levers 89 for-- ward I have provided at each side. a second lever 90 having the upper end pivotally mounted on a pin 90, the lower end con nected by means of a link 90 to a cross bar 91 secured permanently to the under side of the pan. and the body portion thereof connected to the lever 89 by a short link 92.

Flat springs 93 are secured permanently to the sides of the rack and are arranged such that their rear ends ride continuously on the outer faces of the levers 89.

From the above construction it will be seen that when the pan is dumped the links 90 will pull the bottom ends of the levers 90 ahead and these levers will effect, through the action of the links 9:2, the forward pull of the upper ends of the short levers 89. As these short levers swing initially forwardly the top or upper ends of them pass into a higher plane with the result that they force the rearends of the spring catches 88 up sufiiciently far to release thelocking bar 87. In the further forward pull of the short levers they engage the parts 88 of the catches cleared from the catches. The instant they the rack side.

clear, the catches spring back to the original position. This action will obviously release the locking bar and allow the gate to open. In the return movement of the pan the action of the short levers will be reversed and as they are constantly pressed inwalrdly by the action of the flat springs 93 they will pass the tips of the levers back into their original position beneath the catches where they are reset. In the return movement of the short levers it'will be understood that the tips or upper ends thereof swing from a higher plane into a lower plane and that in the lower plane they are free to move sidewise under the action of the springs and regain the original positions beneath the catches.

After the loadhas been dumped the gate will swing down over the deposited load in the-advancement of the machine and berelocked by the locking catches as theyassume their initial positions immediately they are released from the levers 89, this being actually before the pan has returned to the origi- V nal position.

To make the catches more positive in their action I have supplied an additional spiral spring 9 f at each side, each spring being mounted on a guide rod 95 having the lower end fastened tothe catch and the upper end slidably mounted in'a bracket 96 fixed to The spiral springs bear against the catches and the brackets while the guide rods are free to travel in the bracket.

97' and 97 are offset draft poles having their rear ends secured by horizontally disposed pivot bolts to the upper ends of the spindles 11 'and their forward ends connected by a yoke bar 98, the yoke bar being fastened to the poles by pivot bolts 99. This yoke bar causes the poles to turn an equal amount and consequently effects the proper steering of the loader. The sheaves it will be understood pass beneath the yoke bar.

100 and 100 are doubletrees mounted to slide forwardly and backwardly on traveler rods 100 presented by the rear ends of the oles. The doubletrees are connected by a cable 101 which passes around suitably located pulleys 102 mounted on the main frame.

103 are neck yokes slidably mounted on guide rods 104 located at the forward ends of the poles. Two teams of draft animals are hitchedto the machine in the usual way between the neck yokes and the doubletrees.

The offsets given the rear ends of the poles allow the inner horse of each team to be entirely free of the sheaves passed to the pick-up. I

It is remarked that the guard platesprevent any possibility of the sheaves becoming entangled in the rotating parts and they also have the effect of sweeping up any loose grain falling from the sheaves. There is actually a considerable draft created at the lower end of the conveyer owing to the fan nature of the pick-up.

'What I clam as my invention is;

1. In a sheaf loader the combination with an elevated open bottomed sheaf-receiving rack, of pairs of upwardly converging hang-- erscontained within the rack sides and having their upper ends pivotally connected to the inner sides of the rack, a rearwardlyinclined pan normally closing the bottom of the rack and permanently suspended from the lower diverging ends of the'hangers and releasable means retainingthe pan in the closed position.

2. In a sheaf loader the combination with an elevated open bottomed sheaf receiving rack, of a pair of opposing short length side bars pivotally secured to the inner sides of the rack, opposing pairs of upwardly converging hangers having the upper ends thereof secured to the ends of the-side bars, a rearwardly inclined pan normally closing the bottom of the rack andpermanently' secured to the lower diverging ends of the.

hangers and releasable means for retaining the pan in the closed position. I

3. In a sheaf loader the combination with an elevated open bottomed sheaf receiving rack, of a pair of opposing short length side bars pivotally secured to theinner sides of the rack opposing pairs of upwardly converging hangers having the upper ends thereof secured to the ends of the side bars, a rearwardly inclined pan normally 'closing the bottom of the rack and permanently secured to the lower diverging ends of the hangers, releasable means for retaining the pan in the closed position and an inclined apron having the upper edge thereof piv-i otally secured to the front end of the rack of the pan.

Signed at Winnipeg,

NELSON JACKSON.

In the presence Of-r' G. S. ROXBURGi-I, ROLAND FosrER.

Copies of this patient may be obtained for five cents each, by addressing the Commissioner oils/tents,

' Washington,D.0." p 1 ,5

a and the lower end raised on the upper face 

